4209 Briggs
| Discovery Synodic rotation period | 12.22±0.02 h[11] 12.235±0.01 h[12] 12.2530±0.0005 h[13] | |
|---|---|---|
| 0.067±0.013[8] 0.0827 (derived)[4] 0.0889±0.0256[9] 0.093±0.012[10] 0.103±0.006[7] 0.1288±0.026 (IRAS:2)[6] | ||
| C [4] | ||
| 10.8[6][7][9] · 11.20[8] · 11.3[1][4] · 11.57±0.42[14] | ||
4209 Briggs, provisional designation 1986 TG4, is a carbonaceous Alauda
Geoffrey A. Briggs.[2]
Orbit and classification
Briggs is a member of the
902),[5] a large family of typically bright carbonaceous asteroids and named after its parent body, 702 Alauda.[16]
: 23
It orbits the Sun in the outer main-belt at a distance of 2.9–3.4 AU once every 5 years and 7 months (2,048 days). Its orbit has an eccentricity of 0.08 and an inclination of 22° with respect to the ecliptic.[1] The first precovery was obtained at El Leoncito in 1969, extending the asteroid's observation arc by 17 years prior to its discovery.[15]
Lightcurves
A rotational
U=n/a).[13]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite
NEOWISE mission, the asteroid measures between 25.6 and 31.3 kilometers in diameter and its surface has an albedo in the range of 0.07 to 0.13.[6][7][9][8][10] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.08 and a diameter of 25.4 kilometer, slightly below the result obtained by IRAS.[4]
Naming
This
M.P.C. 18456).[17]
References
- ^ a b c d "JPL Small-Body Database Browser: 4209 Briggs (1986 TG4)" (2017-03-31 last obs.). Jet Propulsion Laboratory. Retrieved 4 July 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b "Briggs, Geoffrey A". Encyclopedia Astronautica. Archived from the original on 6 August 2002. Retrieved 2 May 2016.
- ^ a b c d e f "LCDB Data for (4209) Briggs". Asteroid Lightcurve Database (LCDB). Retrieved 2 May 2016.
- ^ a b "Asteroid 4209 Briggs – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
- ^ Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
- ^ )
- ^ S2CID 46350317. Retrieved 2 May 2016.
- ^ S2CID 35447010. Retrieved 2 May 2016.
- ^ S2CID 119293330. Retrieved 5 December 2016.
- ^ ISSN 1052-8091. Retrieved 2 May 2016.
- ISSN 1052-8091. Retrieved 2 May 2016.
- ^ S2CID 119214895. Retrieved 2 May 2016.
- S2CID 53493339. Retrieved 2 May 2016.
- ^ a b "4209 Briggs (1986 TG4)". Minor Planet Center. Retrieved 2 May 2016.
- S2CID 119280014.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 2 May 2016.
External links
- The Palmer Divide Observatory: Tour given by Brian Warner on YouTube(time 4:03 min.)
- Lightcurve plot of 4209 Briggs, Palmer Divide Observatory, B. D. Warner (2003)
- Encyclopedia Astronautica – Briggs, Geoffrey A
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 4209 Briggs at AstDyS-2, Asteroids—Dynamic Site
- 4209 Briggs at the JPL Small-Body Database
